user
Compose a thank you note to someone who has done you a favor.

assistant
Dear [Name], 

I wanted to take a moment to express my deep and sincere appreciation for your help over the past few weeks. Your generous assistance has been invaluable and has made an enormous difference in my life. I am incredibly thankful for your kindness and support and I am deeply grateful to call you my friend. Thank you again for everything. 

With love and appreciation, 
[Your name]